There is a lot of excitement brewing in the astronomy community because June 5th or 6th of 2012 will be the day Venus can be seen crossing in front of the Sun. Transits of Venus are among the rarest of predictable astronomical phenomena. They occur in a pattern that repeats every 243 years, with pairs of transits eight years apart separated by long gaps of 121.5 years and 105.5 years. Even though Venus is larger than our moon it appears as a tiny black dot on the sun. Be sure to order your solar shades to protect your eyes when watching it. And, of course, there is a phone app for this to connect you with international viewers.
June 2004 transit of Venus